Restructure omni services and add Chatwoot research snapshot

research/chatwoot/spec/models/webhook_spec.rb

@@ -0,0 +1,11 @@
+require 'rails_helper'
+
+RSpec.describe Webhook do
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:account_id) }
+  end
+
+  describe 'associations' do
+    it { is_expected.to belong_to(:account) }
+  end
+end